Impact of dose, frequency of administration, and equol production on efficacy of isoflavones for menopausal hot flashes: a pilot randomized trial.
Crawford SL, Jackson EA, Churchill L, Lampe JW, Leung K, Ockene JK. Impact of dose, frequency of administration, and equol production on efficacy of isoflavones for menopausal hot flashes: a pilot randomized trial. Menopause. 2013 Sep; 20(9):936-45.